Method and apparatus for transmitting power headroom report by terminal in wireless communication system
First Claim
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1. A method for transmitting a power headroom report (PHR) by a user equipment performing wireless communication based on dual connectivity, the method comprising:
- triggering the PHR based on a path loss change, a periodic timer, or both the path loss change and the periodic timer; and
transmitting the PHR to the base station according to the dual connectivity,wherein;
the base station according to the dual connectivity comprises a first base station and a second base station,the PHR comprises a first PHR for a first frequency band and a second PHR for a second frequency band, andthe transmitting of the PHR comprises;
transmitting the first PHR to the second base station when the second PHR for the second base station is triggered based on the user equipment receiving the downlink signals from one base station of the first base station and the second base station at a time and transmitting an uplink signal to only the corresponding base station at a time.
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Abstract
Disclosed are a method and an apparatus for transmitting a power headroom report (PHR) by a terminal which is set to be dually connected to at least two heterogeneous base stations through uplink wireless connection. A method for transmitting a power headroom report (PHR) by a user equipment performing wireless communication based on dual connectivity. The method may include triggering the PHR based on at least one of a path loss change and a periodic timer; and transmitting at least one PHR to at least one base station according to the dual connectivity.
21 Citations
6 Claims
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1. A method for transmitting a power headroom report (PHR) by a user equipment performing wireless communication based on dual connectivity, the method comprising:
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triggering the PHR based on a path loss change, a periodic timer, or both the path loss change and the periodic timer; and transmitting the PHR to the base station according to the dual connectivity, wherein; the base station according to the dual connectivity comprises a first base station and a second base station, the PHR comprises a first PHR for a first frequency band and a second PHR for a second frequency band, and the transmitting of the PHR comprises; transmitting the first PHR to the second base station when the second PHR for the second base station is triggered based on the user equipment receiving the downlink signals from one base station of the first base station and the second base station at a time and transmitting an uplink signal to only the corresponding base station at a time. - View Dependent Claims (2, 3)
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4. A method for transmitting a power headroom report (PHR) by a user equipment performing wireless communication based on dual connectivity, the method comprising:
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triggering the PHR based on a path loss change, a periodic timer, or both the path loss change and the periodic timer; and transmitting the PHR to the base station according to the dual connectivity, wherein; the base station according to the dual connectivity comprises a first base station and a second base station, the PHR comprises a first PHR at a first frequency band and a second PHR at a second frequency band, the user equipment receives downlink signals from one base station of the first base station and the second base station at a time and transmits an uplink signal to only the one corresponding base station at a time, and when the second PHR for the second base station is triggered and the triggered second PHR is transmitted, the first PHR for the first base station is transmitted. - View Dependent Claims (5)
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6. A user equipment for performing wireless communication and transmitting a power headroom report (PHR) based on dual connectivity, the user equipment comprising:
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a triggering unit triggering the PHR based on a path loss change, a periodic timer, or both the path loss change and the periodic timer; a transmitting unit transmitting the PHR to the base station according to the dual connectivity, wherein; the base station according to the dual connectivity comprises a first base station and a second base station, the PHR comprises a first PHR for a first frequency band and a second PHR for a second frequency band, the transmitting unit is further configured to; store the first PHR in the user equipment and transmit the first PHR to the second base station when the second PHR for the second base station is triggered based on the user equipment receiving the downlink signals from one base station of the first base station and the second base station at a time and transmitting an uplink signal to only the one corresponding base station at a time.
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Specification